Seiko Cal. 4446 - 637

The 4446-637 is a sought-after Kinetic piece from Seiko's golden era. It features a Navy dial protected by a Sapphire crystal and offers 160m of water resistance. [seikata-wm-2f6f1f3be8ad]

Also known as: Golden Tuna

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

44mm

Case Thickness

11.2mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

160m

Dial Color

Navy

Jewels

26j

Frequency

36,000 bph

Power Reserve

63 hours

Year

1968

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